Yeah....but you do know people can accidentally spray themselves or others that they don't intend to use it on.

I'd say bear spray. That'll clear a room.

OR, you could just kneecap the attacker. He doesn't die and he'll never walk right again. Win-win situation

What if you're a weak person? Not all people have the strength to give their attacker a knee to the gut. Despite what some gals would say, women can be weak in combat unless properly trained. I'd say kick them in the balls. That work even if you are skin and bones.

Fat people have a problem of no muscle strength, so a fist to their round guts will put them down and they might not be as fast as someone who's trying to kick their asses.

You get a gun, make sure it's loaded, and shoot the attacker

All you need to stop an attacker is a trusty old baseball bat and use it to beat the crap out of them.

A classroom full of boys? Hmmm, I admit that might be more than I could ever handle.

On the bright side, if you focus on stuff like wars, then it might be easier to keep their attention. I think part of the trick is learning how to drop random (but hilarious) pop culture references whenever possible. I know somebody who teaches high school history right now, and that's how she told me she keeps them focused - somehow, her class manages to reference everything from "Men in Black" to Bon Jovi, and her kids love her.

Well, a couple of years ago I was one of those boys (yeah, it´s my old high school), and yes, it was hard to the teachers to handle us.

I´ve been planning what to do. For the first years (1st and 2nd year of the highschool, kids between 12 and 14), movies. For example, Gladiator when they´re studying Rome, using my laptop and the school´s projector. While they´re watching the film, they must take note. As history is like telling a story, it´s easier for them than studying maths (ugh...).

We have a whole class about the Civil War. I think the teacher is a reenactor, but I do know he is a pretty cool guy

By "kneecap" I think he ment kicking the person in the knee, as a good heel kick can shatter someone's patella and, like he said, leave them unable to walk right ever again.

When I think of "kneecapping", I think of something like this:

http://www.cartoonstock.com/lowres/iba0038l.jpg